Found again after something like a 15 year absence, fractint displays fractals, letting you zoom in on them, colour cycle (just in 256 colours I think), etc.  I find the DOS version works better on XP 
 
 Homepage: 
hxxp://spanky.triumf.ca/www/fractint/fractint.htmlDOS fractint v20.0: 
hxxp://spanky.triumf.ca/pub/fractals/programs/ibmpc/frain200.zipWindoze fractint v18.21:  
hxxp://spanky.triumf.ca/pub/fractals/programs/ibmpc/windows/winf1821.zipTutorial here: 
hxxp://members.aol.com/billatny/Fractint_Tutorial.htmDeepzooming: 
"Fractint now has this amazing capability to zoom into unbelievable depths with precision up to 1600 decimal digits." hxxp://spanky.triumf.ca/www/fractint/dz.html - 
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